Resilient drip-proof nozzle construction



RESILIENT DRIP-PROOF NGZZLE CON 51111143757131 William N. Maison, Fitchburg, Mass.

Application Gctober 17, 1952, Serial No. 315,374

3 Claims. or. 222-517 This invention relates to new and improved dripproof nozzle constructions especially adapted for dispensing fluids from liquid containers, particularly those containing dangerous fluids, chemicals or inflammable material including kerosene and gasoline.

Containers of this type are usually provided with taps at the bottoms thereof for easy draining and dispensing and these faucets always drip to a slight extent forming tire hazards and other dangerous conditions in homes, stores and factories.

The principal object of the present invention resides in the provision of a device including a flexible metal hose having a nozzle that is commonly disposed above the level of the liquid in the container in upright condition and which cannot leak, and the provision of a flexible hose or" this type which is connected to the bottom of the 30 fluid container by a flexible metal hose, the same being of course fire-proof and safe in all respects and capable of dispensing all kinds of fluids with safety and without any dripping action. 6

Another object of the present invention resides in the provision of a flexible metal tubing hose for the purpose described and which comprises a series of coils in the nature of a spring, imparting resilience to the metal tubing so that the dispensing nozzle may be selectively secured in upright non-operative condition or selectively brought down to dispensing position.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 is a view in side elevation illustrating one form of the invention;

Fig. 2 is a partial view in front elevation thereof;

Fig. 3 is a view similar to Fig. 1 showing a modification; and

Fig. 4 is a view in front elevation showing a further modification.

Attention is directed to my original application Serial No. 155,024 filed April 10, 1950, now abondoned, disclosing a flexible metal hose of woven material. Although such a hose is satisfactory for the purpose, it is very expensive and the present invention provides an improvement thereon and which is far less expensive to manufacture.

As shown in Pig. 1, there is represented a container 10 on a stand 12 or the like. This container is in the nature of a drum as for kerosene but the invention is applicable to any other type of container also. This drum has a rim 14 and at the bottom of the drum there is connected thereto in any manner desired a rigid angle pipe 16 which will drain the container. To this rigid angle pipe there is secured preferably by soldering or States Patent iatented i 1956 sweating, the straight end 13 of a thin metal tube which continues from the straight portion thereof in a series of progressive outwardly directed spirals or coils 2i tern1inating in another straight portion 22 connected in turn to a rigid pipe 24 having a nozzle 26 thereon.

The coils 2t) impart flexibility to the all metal tubing hose so that the part 24 may be raised into vertical position and retained in a hook 28 while the nozzle is inoperative, and it will be seen that the part 22 has been brought around to 189 degrees with respect to the straight part The tendency is of course for the rigid pipe and nozzle to be forced downwardly and outwardly in a counterclockwise direction in Fig. 1, due to the coils which form a spring, so that no effort is needed to bring the nozzle down to filling position, but some odor. is required to return the nozze to the inoperative vertical position. The inherent resiliency of the metal tubing hose will of course maintain the device in the upright position secured in the hook 28.

The 3 device is similar to that shown in Fig. 1 but in this case the coils 39 extend progressively downwardly and terminate in a long straight reversed part 32 which is secure to the pipe 2 in this case the operation is the same as before but the direction of coiling of the metal tubing is different as clearly shown. In Fig. l, the coils tend to remain in a horizontal position, and in Fig. 2 they tend to remain in a vertical position.

Fig. 4 shows a still further modification where the metal tubing hose is coiled in increasing spirals in a single plane as shown at 3 and terminating in a straight portion 36, but otherwise the operation and construction of the device is the same as above.

it will be seen that this invention provides an inexpensive all-metal fire-safe dispensing hose which avoids the necessity of the expensive woven metallic hose and which may be made to dispense any chemical or inflammable fluid.

Having thus described my invention, I do not wish to be limited to the details thereof, but what I claim is:

1. Safety hose comprising thin walled metal tubing formed into a spring coil and being flexible, but selfsustaining in an original position, and tending to return to such original position upon distortion of the spring coil to move the hose to a different position due to the resiliency of the coil and a rigid end piece at each end of the hose, one end being secured to a container and the other end being elongated and movable between a lower dispensing position and an upper inoperative position, and means to releasably hold said hose in the latter condition.

2. The safety hose of claim 1 wherein the spring coil is originally substantially horizontal.

3. The safety hose of claim 1 wherein the spring coil is originally substantially vertical.

References {Iited in the file of this patent UNITED STATES PATENTS 251,832 Clark Ian. 3, 1882 524,754 Chable Aug. 21, 1894 875,316 Borland Dec. 31, 1907 1,286,821 Speer Dec. 3, 1918 2,467,276 Hendel et al Sept. 10, 1946 2,516,728 Smith July 25, 1950 FOREIGN PATENTS 44,492 France Feb. 2, 1935 479,368 Great Britain Feb. 4, 1938 

